J&M Diamond Tool single point natural diamond dressers are manufactured in the US at our East Providence Rhode Island facilities.

General Purpose

Select

Premium

General Purpose stones, although in some cases may be reset, are referred to as "throw aways". These are lesser quality stones than Select or Premium diamonds and therefore have less dressing time expectancy.

Select diamonds are better then General Purpose stones but are less expensive than Premium because they have fewer cutting edges. Select stones approximate Premium quality, but have fewer points and therefore cannot be reset as many times.

Premium diamonds are specially selected diamonds for their shape and structure. These diamonds, because of their many points, may be reset several times which more than pays for the higher cost.

Click on Above Diamond Group for a larger Picture

STYLE "A" = 7/16" by 2"

Carat

Select Size

Select Size

Select Size

Weight

General Purpose

Select

Premium

Qty

1/4 ct.

1/4 ct. GP $25.25

1/4 ct. SE $39.50

1/4 ct. PR $76.50

1/3 ct.

1/3 ct. GP $28.25

1/3 ct. SE $47.50

1/3 ct. PR $88.25

1/2 ct.

1/2 ct. GP $38.50

1/2 ct. SE $72.00

1/2 ct. PR
$112.75

3/4 ct.

3/4 ct. GP $51.25

3/4 ct. SE $106.00

3/4 ct. PR $175.00

1 ct.

1 ct. GP $72.00

1 ct. SE $166.75

1 ct. PR $248.75

1-1/2 ct.

1-1/2 ct. GP $105.00

1-1/2 ct. SE $267.50

1-1/2 ct. PR $473.75

2 ct.

2 ct. GP $140.00

2 ct. SE $313.50

2 ct. PR Quote on Request

3 ct.

3 ct. GP $191.75

3 ct. SE $421.25

3 ct. PR Quote on Request

STYLE "A" = 3/8" by 2"

Shank required for 3 ct Dresser

Carat

Select Size

Select Size

Select Size

Weight

General Purpose

Select

Premium

Qty

1/4 ct.

1/4 ct. GP $25.25

1/4 ct. SE
$39.50

1/4 ct. PR $76.50

1/3 ct.

1/3 ct. GP
$28.25

1/3 ct. SE
$47.50

1/3 ct. PR $88.25

1/2 ct.

1/2 ct. GP
$38.50

1/2 ct. SE
$72.00

1/2 ct. PR $112.75

3/4 ct.

3/4 ct. GP
$51.25

3/4 ct. SE
$106.00

3/4 ct. PR $175.00

1 ct.

1 ct. GP $72.00

1 ct. SE
$166.75

1 ct. PR $248.75

1-1/2 ct.

1-1/2 ct. GP $105.00

1-1/2 ct. SE $267.50

1-1/2 ct. PR $473.75

2 ct.

2 ct. GP
$140.00

2 ct. SE
$313.50

2 ct. PR Quote on Request

3 ct.

3 ct. GP
$191.75

3 ct. SE
$421.25

3 ct. PR Quote on Request

STYLE "B" = 7/16" by 1-5/8"

Carat

Select Size

Select Size

Select Size

Weight

General Purpose

Select

Premium

Qty

1/4 ct.

1/4 ct. GP $27.25

1/4 ct. SE
$41.50

1/4 ct. PR
$78.50

1/3 ct.

1/3 ct. GP
$30.25

1/3 ct. SE
$49.50

1/3 ct. PR
$90.25

1/2 ct.

1/2 ct. GP
$40.50

1/2 ct. SE
$74.00

1/2 ct. PR
$114.75

3/4 ct.

3/4 ct. GP
$53.25

3/4 ct. SE
$108.00

3/4 ct. PR
$177.00

1 ct.

1 ct. GP $74.00

1 ct. SE
$168.75

1 ct. PR
$250.75

1-1/2 ct.

1-1/2 ct. GP $107.00

1-1/2 ct. SE $269.50

1-1/2 ct. PR $473.75

2 ct.

2 ct. GP
$142.00

2 ct. SE
$315.50

2 ct. PR Quote on Request

3 ct.

3 ct. GP
$193.75

3 ct. SE
$423.25

3 ct. PR Quote on Request

POINT SIZE SELECTION CHART

Wheel
Diameter

in
inches or less

Wheel

Diamond

Width

Carat
Size

Wheel

Diamond

Width

Carat
Size

Wheel

Diamond

Width

Carat
Size

4”

1/2"-1"

0.25

2-1/4"

0.33

6"

1"

0.33

2-1/2"

0.5

8"

1/2"

0.33

1-1/2"

0.5

3"

0.75

10"

1"

0.5

2-1/4"

0.75

2-1/2"

0.75

12"

1/2"

0.75

1-1/2"

0.75

3"

1

14"

1"

0.75

2-1/4"

1

2-1/2"

1

16"

1/2"

0.75

1-1/2"

1

3"

1.5

18"

1/2"

1

1"

1.25

2-1/4"

1.5

20"

1-1/2"

1.5

1-75"

1.75

3"

2

24"

1"

1.5

2-1/4"

2

4"

3

POINT SIZE SELECTION CHART - Shows optimum size diamond point (carats) for various combinations
of wheel diameter and width.